Occiput Anterior What is to Know

The occiput anterior (OA) position is a fetal head position in which the occiput (the back of the baby's head) is facing the mother's anterior (front). This is the most common fetal head position for labor and delivery, occurring in about 95% of births.

How does the baby get into the OA position?

The baby's head is usually in the OA position by the time labor begins. However, there are a few things that can cause the baby to turn to a different position, such as:

* A large baby

* A small pelvis

* A previous vaginal birth

* A multiple pregnancy

* A breech presentation

What are the advantages of the OA position?

The OA position is the most ideal position for labor and delivery because it allows the baby's head to fit through the mother's pelvis most easily. This can help to reduce the risk of complications, such as:

* Prolonged labor

* Episiotomy

* Cesarean delivery

* Fetal distress

What if the baby is not in the OA position?

If the baby is not in the OA position, the doctor may try to manually turn the baby's head. This is called a cephalic version. A cephalic version is usually done during the early stages of labor. If the cephalic version is successful, the baby will be in the OA position for delivery.

What if the baby cannot be turned to the OA position?

If the baby cannot be turned to the OA position, the doctor may recommend a cesarean delivery. A cesarean delivery is a surgical procedure in which the baby is delivered through an incision in the mother's abdomen.